class TestHelp
  def sign_in(user)
    self.current_user = user
    foo
    self.current_user
  end

  def current_user=(user)
    @current_user = user
    p "bbbb"
  end

  def current_user
     p "aaa"
  end

  def foo
    p "foo"
  end

  def boo
    p "boo"
  end

end
t = TestHelp.new
t.sign_in("uu")
